Plastic windows Stern (Schtern) are presented on the window construction market. Windows have been produced in Lipetsk since 1996, and today they can already be found in other regions of Russia: Volgograd, Tambov, Tula, Penza, etc. There are official representative offices in Moscow, these are Stern-West and BelMetPlast.
Based on the cost of the Schtern profile, it can be classified as a budget option. And since the manufacturer claims that only the best material is used in its production, the price may be influenced by the low cost of supplying raw materials. The raw materials used in production are purchased from European companies, “Schuco”, “Deceuninck” and from the Russian company “TATPROF”. The fittings installed on the windows are Roto and Winkhaus. The double-glazed window can be energy-saving, armored, tinted.
Video: Stern Windows
Russian production profile
SCHTERN products are manufactured using new high-tech equipment and comply with established quality standards in all respects.
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Some of the main advantages are
- stable reliability
- favorable price
All products of this brand are environmentally friendly and do not cause any harm to human health and nature.
Thanks to lamination, SCHTERN windows can acquire different colors, which allows you to implement any customer request.
Which series should I choose?
SCHTERN 58 is a new profile system with a width of 58 mm, characterized by high quality and affordability.
This is the most appropriate solution for cold balconies, verandas and other unheated rooms. SCHTERN 70 has 3 chambers and a 70 mm installation width. It is possible to use double-glazed windows with a thickness of 24 mm and 36 mm. This PVC system is highly durable and is intended for object and individual glazing.
SCHTERN 82 is an innovative system with glued glass units that has outstanding technical characteristics. The profile has a 6-chamber design and an installation width of 82 mm. It is distinguished by high heat-saving properties and excellent light transmission capabilities.
Specialists from the 21st Century Windows Corporation will answer all your questions in our offices or by phone in Moscow.
PVC window profile SCHTERN 58
If you are planning to buy SCHTERN plastic windows, then, obviously, you are in a situation of choice. In addition to the fact that there is an urgent need to determine which plastic windows are, in principle, suitable for your window opening and room, in order to harmoniously fit into their specifics and perform all the necessary functions, it is also important to set priorities within the diversity of the SCHTERN line itself.
Today, the palm in terms of combination of offers for the economy class client is firmly held by the SCHTERN 58 profile .
SCHTERN 58 plastic windows are characterized by the following parameters:
- standard profile width equal to 58 mm;
- three air chambers with inert gases both in the profile itself and in the window sash;
- two full profile sealing contours in light gray color;
- glass unit width 24 mm - with one air chamber and 32 mm with two air chambers;
- unique 4mm thickened SCHTERN glass;
- resistance to the heat transfer process in a conventional value of up to 0.65.
Characteristics:
| Comparison of characteristics | Window SCHTERN 58 | Regular window |
| Basic profile width | 58 mm | 52 mm |
| Number of air chambers | frame - 3, sash - 3 | frame - 2, sash - 2 |
| Number of seal circuits | 2 | 1 |
| Seal outline color | light gray | black |
| Color of the seal outline on the bead | red | white |
| Heat transfer resistance (Rpr (m2 °C/W) | up to 0.65 | up to 0.55 |
Separately, mention should be made of fittings for plastic windows, which are used within the SCHTERN 58 window systems. These are traditionally window accessories from the manufacturing company ROTO. We can talk about both standard window accessories with maximum functionality and a long-term guarantee of high-quality operation (handles, plugs, innovative SCHTERN window sills, etc.), and about specific elements - child locks, mosquito nets, visors, ebb sills, locks ( ROTO accessories 2), etc.
It is also possible to finish the window profile with special coatings , allowing you to give the structure a particular appearance. We can talk about both color design and imitation of wood of virtually any species.
The described characteristics clearly indicate the possibility of equipping any type of premises, both residential and non-residential, with plastic windows of the SCHTERN 58 modification - while maintaining an adequate price range.
The warranty period for full operation of SCHTERN window structures is traditionally 40 years or more, and the preservation of all functionality is ensured, even with temperature changes from -60 to +75 degrees Celsius.
At the same time, SCHTERN 58 windows are strongly reinforced, which makes them very reliable, and also meets all existing GOST standards in terms of environmental safety.
True German VEKA quality
Premium German brand on the Russian market since 1995. With VEKA you get true German quality from a company with a 48-year history around the world.
- ALL profile systems of the highest class “A”
- ALL are made frost-resistant and marked with the letter “M”
- ALL have maximum 4-sided steel reinforcement
- Uniform quality standard regardless of country of production
The more air chambers, the less air exchange and, accordingly, the higher the thermal insulation.
The wider the profile and the greater the installation depth, the higher the thermal insulation.
SCHTERN THERMO (Stern Thermo)
This combined system with an installation depth of 82 mm is made using simultaneous use of plastic and aluminum.
Stern Thermo profiles are used to assemble load-resistant and warm premium windows with 2 sealing contours. The aluminum profile is located on the outside of the structure and protects the plastic from overheating, and also gives the products additional rigidity and stability of shape. The SCHTERN THERMO system is based on a 3-chamber PVC profile with steel reinforcement. In this modification of windows, the manufacturer realizes all the advantages of the premium series:
- possibility of gluing double-glazed windows;
- high energy efficiency;
- increased light transmittance;
- unique design;
- additional protection against deformation.
The internal chambers of the aluminum linings are filled with foam insulation, thanks to which it was possible to further increase the energy efficiency of Thermo Windows. The metal profile is painted with durable enamel, the color of which can be selected from the RAL catalogue. Structures made from SCHTERN THERMO profile systems are ideal for installation in residential and commercial buildings located in regions with moderate climatic conditions.
Profiles ONLY of the highest class “A”
According to GOST 30673-99 “PVC profiles for window and door blocks” in terms of the thickness of the internal walls, ALL of our profiles are the highest class “A” - the thickness of their front wall is at least 3 mm.
GOST standards for different classes:
- class “A”: front wall not less than 3.0 mm
- class “B”: front wall not less than 2.5 mm
- class “C”: wall thickness is not standardized
Please note that 80-90% of the Russian market are classes “B” and “C” and only 10-20% are class “A” profiles. At the same time, VEKA’s assortment includes ONLY class “A” profiles.
We fundamentally DO NOT use profile systems of classes “B” and “C” (with a front wall width of less than 3.0 mm).
PVC window profile SCHTERN RED
Plastic windows from SCHTERN are considered one of the best in the entire line of similar products. Moreover, this applies to both the Russian and international markets.
You can buy SCHTERN RED by ordering them for yourself, and at the same time receive an additional range of other services (consulting, measuring the window opening, calculating the cost of plastic windows, delivery and installation of plastic windows with the participation of qualified specialists). At the same time, the price for SCHTERN plastic windows is determined directly by which profile model will be chosen.
The SCHTERN profile is traditionally made in one of three standard options: “economy”, “classic” or “premium”. The latter is, accordingly, the highest quality, the most reliable and the most individualized in terms of design.
The Stern “Premium” profile, in turn, is also represented by several models, the most prestigious and visually attractive of which is the SCHTERN RED model.
Characteristics:
| Comparison of characteristics | Window SCHTERN RED | Regular window |
| Basic profile width | 70 mm | 52 mm |
| Number of air chambers | frame - 5, sash - 5 | frame - 2, sash - 2 |
| Number of seal circuits | 2 | 1 |
| Seal outline color | light gray | black |
| Color of the seal outline on the bead | red | white |
| Heat transfer resistance (Rpr (m2 °C/W) | up to 1.2 | up to 0.55 |
Please note that the main feature of the SCHTERN RED profile, reflected directly in its name, is the possibility of design in various colors. In particular, the design of the glazing bead seal along the contour in red is typical. This is a kind of “highlight” of this type of profile. In this case, the space around the contour is done in light gray.
Stern plastic windows are associated with the use of original window fittings. These are invariably Roto Designo window accessories, which are well-known and quite popular in their own right.
Accessories for Roto Designo windows are visually invisible window hinges of minimal size, built-in linings, aesthetically pleasing unique SCHTERN handles and plugs, which can also be made in red at the client’s request. The record holder in terms of elegance among the accessories offered is Roto NT, in which “Designo” type hinges are designed for doors weighing up to 150 kg.
Separately, we note the presence of a special child lock on the window profile, as well as a lock that additionally protects the room from break-ins from the outside.
The Stern plastic profile is always made in an original style, and the window system itself has been repeatedly recognized as one of the best at various international specialized exhibitions. The SCHTERN RED corporate style makes the window unique and attractive, highlighting it favorably against the general standard background.
Comfort and safety, reliability and the maximum possible number of functions, ease of use and ease of installation - all this is about Stern Red. In addition to this, it should be noted that SCHTERN RED plastic windows perfectly retain heat in the room, provide decent sound insulation and can limit the penetration of excessive portions of sunlight into the room, while guaranteeing the retention of harmful UV radiation by 15%.
In addition, upon your individual pre-order, the SCHTERN RED window can also be equipped with a stylish thermometer.
ONLY frost-resistant profiles
According to GOST 30673-99 “PVC profiles for window and door units” for resistance to climatic influences, ALL of our profiles are “frost-resistant” - for areas with an AVERAGE monthly air temperature in January BELOW minus 20°C.
GOST standards for different classes:
- normal version “N”: the average temperature in January is minus 20°C and above
- frost-resistant version “M”: the average temperature in January is lower than minus 20°C
Our assortment includes ONLY frost-resistant profile systems marked with the letter “M”.
Heat transfer resistance (thermal thermal resistance) is the main thermal insulation coefficient. It is determined by the ratio of the temperature difference between the outside and inside the room to the heat flow passing through the window. The higher this number, the better the insulation performance.
PVC window profile SCHTERN FEST 70
PVC windows SCHTERN (Stern) are presented on the market in various price categories, among which the “Classic” group is a kind of standard. The name of this line is no coincidence - we are really talking about using classic average approaches to price and quality, allowing for their most harmonious and optimal combination.
Below we will describe the Stern plastic windows of the “Classic” series with a basic profile width of 70 cm. This is the SCHTERN FEST 70 .
SCHTERN FEST 70 profile – main parameters:
- 5 air chambers in the frame and the same number in the doors.
- 2 sealing circuits.
- 2 double glazing chambers with a width of 36 mm.
- Heat transfer resistance index 1.2.
- Possibility of gluing double-glazed windows for additional fastening.
- Possibility of using different types of double-glazed windows (energy-saving, darkening, multifunctional, etc.).
- Designer fittings for ROTO plastic windows.
Unique color design: the seal outline for non-laminated window systems is light gray, the seal outline for laminated windows is black.
Characteristics:
| Comparison of characteristics | Window SCHTERN FEST 70 | Regular window |
| Basic profile width | 70 mm | 52 mm |
| Number of air chambers | frame - 5, sash - 5 | frame - 2, sash - 2 |
| Number of seal circuits | 2 | 1 |
| Seal outline color | light gray | black |
| Color of the seal outline on the bead | black | white |
| Heat transfer resistance (Rpr (m2 °C/W) | up to 1.2 | up to 0.55 |
Today, SCHTERN plastic windows are one of the most popular because they are not too expensive and there are no critical flaws in manufacturing and functional equipment.
Evolutionary double-glazed windows SmartGlass 2.0
Our multifunctional double-glazed windows work for you both in winter and summer. In winter, the spraying of silver particles retains up to 90% of the thermal energy of heating devices, and in the summer, a double-glazed window reflects 25% more solar heat than conventional plastic windows.
- 42% more HEAT in winter (energy saving properties)
- 25% less HEAT in summer (sun protection properties)
All our double-glazed windows contain special energy-efficient glass. We DO NOT use regular glass even in the most basic configurations.
SCHTERN profile systems
To improve the performance characteristics of PVC systems, the manufacturer uses the best modifiers and stabilizers from the USA, Germany and Belgium.
Thanks to them, Stern profiles do not become brittle in severe frost and do not soften in the sun. If you follow the rules for using PVC products, the plastic does not turn yellow and retains its original structure. Schtern windows are suitable for use in the temperature range from -60 to +75 °C, and their service life is about 40 years. The durability of seals for sealing contours is slightly lower - up to 30 years. At the request of customers, Stern systems are laminated with wood-like or colored films. To make the windows look more attractive, the clamping beads are equipped with red seals. They visually highlight the contours of double-glazed windows, making the frames and sashes look even more compact. To assemble finished products, all enterprises affiliated with SCHTERN use ROTO fittings, which are compatible with profiles of this brand. This choice of opening systems allows you to increase the level of burglary resistance of structures and extend their service life. Currently, Stern Management Company LLC offers customers several types of profiles for assembling windows with different characteristics.
AirDrive I, II and III climate control systems
Optimal ventilation mechanisms are built into the windows - the sashes open slightly by 1-5 mm, depending on the selected mode.
These are NOT external devices (combs or valves), but BUILT-IN ventilation fittings. Three options:
- AirDrive I: slot ventilation (1 mode)
- AirDrive II: discrete multi-stage ventilation (3 modes)
- AirDrive III: discrete multi-stage ventilation (5 modes)
We try not to place combs based on their appearance (only at your request). In principle, we do not use valves due to the fact that they violate the integrity of the window, reduce its tightness and strength (since the profile and its reinforcement are drilled through).
Advantages of plastic windows Stern
Window structures made from this profile have many undeniable advantages. Let us highlight the main ones:
- Environmentally friendly - meets all environmental standards and is safe for human health;
- Security - the ability to install anti-burglary fittings, rigid profile reinforcement, rounded glazing beads that make it difficult to squeeze out glass, all this together makes the window durable and increases protection against burglary;
- Durability - the service life of the profile, according to the manufacturer, is more than 40 years;
- Heat saving - high-quality seals are pressed tightly against the glass, which eliminates the formation of drafts and heat loss. The service life of the seal is 30 years;
- Frost resistance - the Stern window profile has a unique chemical composition, which allows it to withstand temperatures from minus 60º C to plus 75º;
- Sound insulation - a wide profile and tight-fitting seals reduce the level of noise coming from the street;
- Affordable price - Lipetsk plastic windows differ from their competitors in their low price. has extensive experience in the production of window structures. And judging by consumer reviews, which can be found on many websites and forums, the products of this company correspond to the price-quality ratio.
Cost of Stern window
Prices for SCHTERN plastic windows may vary depending on the region. For example, a double-leaf window with a Schtern 70 Classic profile, size 1300 - 1400 mm, will cost 7200 rubles. The price does not include installation.
More information about the products of the Lipetsk - Knipping company, as well as to calculate the cost of windows, can be found on the official website www.ok-schtern.ru
Video: Production SCHTERN FEST
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